Ext.Net.Store.MakeDeletes C# (CSharp) Method

        private void MakeDeletes(IDataSource ds, XmlDocument xml)
        {
            XmlNodeList deletingRecords = xml.SelectNodes("records/Deleted/record");
            string id = GetIdColumnName();

            foreach (XmlNode node in deletingRecords)
            {
                record = node;
                values = new SortedList(0);
                keys = new SortedList();
                oldValues = new SortedList(0);

                confirmation = null;

                if (id.IsNotEmpty())
                {
                    XmlNode keyNode = node.SelectSingleNode(id);
                    string idStr = keyNode != null ? keyNode.InnerText : null;

                    int idInt;

                    if (int.TryParse(idStr, out idInt))
                    {
                        keys[id] = idInt;
                    }
                    else
                    {
                        keys[id] = idStr;
                    }

                    if (this.UseIdConfirmation && keys[id] != null)
                    {
                        confirmation = changingEventArgs.ConfirmationList[keys[id].ToString()];
                    }
                }

                BeforeRecordDeletedEventArgs eBeforeRecordDeleted = new BeforeRecordDeletedEventArgs(record, keys, confirmation);
                this.OnBeforeRecordDeleted(eBeforeRecordDeleted);

                if (eBeforeRecordDeleted.CancelAll)
                {
                    break;
                }

                if (eBeforeRecordDeleted.Cancel)
                {
                    continue;
                }
                
                if (ds != null)
                {
                    ds.GetView("").Delete(keys, oldValues, DeleteCallback);
                }
                else
                {
                    this.DeleteCallback(0, null);
                }
            }

            if (deletingRecords.Count > 0)
            {
                needRetrieve = true;
            }
        }